Just in case one should 'empower' the rest of the people in the office: pdfizer. I just remember doing this myself before when something else was perhaps what was needed. Please keep in mind I don't know your situation.

What's linux 9? Perl 5?

You can do # perl -v on your terminal to get the version of your perl. there *are* differences between 5.x.x and 5.y.y

update (sorry you don't need echo.. i'm running a fever.)

uname gives system info, interesting is like uname -a for all , uname -r is kernel ver, often distro info can be there.